Biology

Biology

A natural science concerned with the study of life or living matter in all its forms and phenomena, especially in relation to their origin, growth, reproduction, structure, behaviour and evolution.

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Biology > Toxicology

pneumoconiosis

Biology; Toxicology

Usually fibrosis of the lungs that develops owing to (prolonged) inhalation of inorganic or organic dusts. Note: Cause-specific types of pneumoconiosis are: # anthracosis: from ...

temporary acceptable daily intake

Biology; Toxicology

Value for the acceptable daily intake proposed for guidance when data are sufficient to conclude that use of the substance is safe over the relatively short period of time ...

rate ratio in epidemiology (RR)

Biology; Toxicology

Value obtained by dividing the rate in an exposed population by the rate in an unexposed population.

slope factor

Biology; Toxicology

Value, in inverse concentration or dose units, derived from the slope of a dose-response curve; in practice, limited to carcinogenic effects with the curve assumed to be linear at ...

urticaria

Biology; Toxicology

Vascular reaction of the skin marked by the transient appearance of smooth, slightly elevated patches (wheals, hives) that are redder or paler than the surrounding skin and often ...